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Revisiting quantum effects in MEMSNew calculations shows that the influence of quantum effects on the operating conditions of nanodevices has, until now, been overestimated.http://phys.org/news303733173.html
NanotechnologyFri, 15 Nov 2013 10:30:01 ESTnews303733173Controlling friction by tuning van der Waals forcesFor a car to accelerate there has to be friction between the tire and the surface of the road. The amount of friction generated depends on numerous factors, including the minute intermolecular forces acting between the two surfaces in contact – so-called van der Waals forces. The importance of these intermolecular interactions in generating friction has long been known, but has now been demonstrated experimentally for the first time by a research team led by Physics Professor Karin Jacobs from Saarland University and Professor Roland Bennewitz from the Leibniz Institute for New Materials (INM). Interestingly, the research team has shown that the friction acting at a material surface is influenced by the structure of the sub-surface layers.http://phys.org/news293438465.html
NanotechnologyFri, 19 Jul 2013 07:41:26 ESTnews293438465Surfaces inspired by geckos can be switched between adhesive and non-adhesive states, study findsAdhesives inspired by the gecko can be made to switch on and off reversibly and repeatedly. The key design parameters for these materials are identified in a study published in Journal of the Royal Society Interface today.http://phys.org/news284274270.html
ChemistryThu, 04 Apr 2013 06:04:46 ESTnews284274270Engineers show dynamic experimental evidence for phenomenon of spreading dropsThe spreading of a liquid drop on a solid surface is a simple, everyday phenomenon. And while it is known that when a drop of oil is placed on a solid surface, its radius increases as its thickness decreases, the mechanisms underlying the process are still not well understood on a microscopic level, particularly at the moving edge between the liquid and solid, which is known as the "contact line" region.http://phys.org/news228721439.html
PhysicsFri, 01 Jul 2011 06:45:18 ESTnews228721439Chemists develop technique to use light to predict molecular crystal structuresA Syracuse University chemist has developed a way to use very low frequency light waves to study the weak forces (London dispersion forces) that hold molecules together in a crystal. This fundamental research could be applied to solve critical problems in drug research, manufacturing and quality control.http://phys.org/news220099634.html
PhysicsWed, 23 Mar 2011 11:47:44 ESTnews220099634